Instance "category" group can get doubled if collecting one, another, then back to the first.

[darkvertex]

I noticed that there seems to be a bug where a "category" section may get recreated if not continuously creating instances under that same category.

In other words, make some for category A, make some B, then make some for A again and those will have a new group in the UI despite one already existing from before.

Here's some dummy collectors that show you the problem:

import pyblish.api

class DummyCollector1(pyblish.api.ContextPlugin):
    order = pyblish.api.CollectorOrder
    def process(self, context):
        for i in range(1,4):
            context.create_instance('potato_%s' % i, category='Fries')

class DummyCollector2(pyblish.api.ContextPlugin):
    order = pyblish.api.CollectorOrder
    def process(self, context):
        for i in range(1,4):
            context.create_instance('carrot_%s' % i, category='Carrots')

class DummyCollector3(pyblish.api.ContextPlugin):
    order = pyblish.api.CollectorOrder
    def process(self, context):
        for i in range(1,4):
            context.create_instance('yam_%s' % i, category='Fries')

Gives me this: Notice how "Fries" exists twice. I'd have expected it to reuse the first group.

[davidlatwe]

It seems to be related to an intentional feature:

The instances are displayed in the order they are processed, and it's a feature of Pyblish to be able to arrange (and re-arrange) the instance order inside the context.

Quote from here

[darkvertex]

Okay! If it's intentional, then I'll shuffle around my plugins to accommodate. No worries.

[tokejepsen]

A bit late on this, but you can also rearrange the instances based their category, with a plugin at the end of the collection stage.

[darkvertex]

How would that work? How does one reorder an Instance after creation?

On Mon, Nov 19, 2018, 8:19 AM Toke Jepsen notifications@github.com wrote:

A bit late on this, but you can also rearrange the instances based their category, with a plugin at the end of the collection stage.

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[tokejepsen]

This is an old example for sorting the instances by family and name, but you can probably adapt it for category:

https://forums.pyblish.com/t/solved-collection-sorting/189